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How to Install Helm on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Install Helm on Debian 13

Introduction How to Install Helm on Debian 13 is a fundamental operation for any administrator maintaining a Debian 13 Trixie server. Debian 13 Trixie ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 12. This tutorial […]

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How to Manage Services with systemd on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Manage Services with systemd on Debian 13

Introduction Debian 13 Trixie is built around the ethos of stability and free software. Setting up manage services with systemd on Trixie leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Trixie freeze. Follow each step carefully and the resulting configuration […]

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How to Enable Brotli and Gzip Compression in Nginx on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Enable Brotli and Gzip Compression in Nginx on RHEL 9

Text-based HTTP responses — HTML, CSS, JavaScript, JSON, XML, SVG — compress dramatically with standard compression algorithms, often achieving 60–80% size reduction. Nginx supports two compression algorithms: gzip (built-in, universal browser support) and Brotli (via the ngx_brotli dynamic module, 15–20% better compression than gzip for text, supported by all modern browsers). Enabling compression is one […]

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How to Install and Configure Caddy Web Server on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Install and Configure Caddy Web Server on RHEL 9

Caddy is a modern, open-source web server written in Go that stands out for one defining feature: automatic HTTPS. Caddy obtains and renews TLS certificates from Let’s Encrypt or ZeroSSL automatically, with zero configuration required beyond specifying a domain name. It also supports HTTP/2 and HTTP/3 (QUIC) out of the box, and its declarative Caddyfile […]

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How to Install Checkmk on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Install Checkmk on Debian 13

Introduction Debian 13 Trixie is built around the ethos of stability and free software. Setting up install checkmk on Trixie leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Trixie freeze. Follow each step carefully and the resulting configuration will persist […]

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How to Install TimescaleDB on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Install TimescaleDB on Debian 13

Introduction Debian 13 Trixie is built around the ethos of stability and free software. Setting up install timescaledb on Trixie leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Trixie freeze. Follow each step carefully and the resulting configuration will persist […]

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How to Set Up SSH Key-Based Authentication on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Set Up SSH Key-Based Authentication on Debian 13

Introduction This guide explains how to Set Up SSH Key-Based Authentication on Debian 13 on Debian 13 Trixie. Debian Trixie uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 13 install with […]

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How to Enable HTTP/2 with Nginx on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Enable HTTP/2 with Nginx on RHEL 9

HTTP/2 is the second major version of the HTTP protocol, standardised in 2015, and offers significant performance improvements over HTTP/1.1: header compression (HPACK), multiplexing (multiple requests over a single connection), server push, and binary framing. On a typical webpage with dozens of assets (CSS, JavaScript, images, fonts), HTTP/2 multiplexing eliminates the head-of-line blocking that forces […]

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How to Configure Apache mod_proxy as a Reverse Proxy on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Configure Apache mod_proxy as a Reverse Proxy on RHEL 9

Apache’s mod_proxy module turns Apache into a powerful reverse proxy and gateway, forwarding requests to backend application servers, other web servers, or balancer clusters. Unlike Nginx’s reverse proxy (which is native), Apache’s proxy functionality is modular: mod_proxy handles the core proxying, mod_proxy_http handles HTTP/1.1, mod_proxy_balancer provides load balancing, and mod_proxy_wstunnel handles WebSocket tunnelling. On RHEL […]

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How to Configure Nginx as a Reverse Proxy on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Configure Nginx as a Reverse Proxy on RHEL 9

A reverse proxy sits in front of one or more backend application servers, forwarding client requests to them and returning their responses to the client. From the client’s perspective, the reverse proxy is the web server. This architecture provides centralized SSL termination, load balancing, caching, rate limiting, and DDoS mitigation without exposing backend application ports […]

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